| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Germany | 3 | |
| #3 | Canada | 2 | |
| #4 | Japan | 2 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Mechanical elements | |
| #5 | Surface technology and coating | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Advertising | |
| #2 | Unspecified technologies | |
| #3 | Nails | |
| #4 | Doors and windows | |
| #5 | General building constructions | |
| #6 | Sound-producing devices | |
| #7 | Finishing work on buildings | |
| #8 | Layered products | |
| #9 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kapstad Odd B | 9 |
| #2 | Otsudo Bii Kapusutatsudo | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4661392A | Sound dampening panel and method of fabrication | |
| CA1040842A | Sheet support apparatus | |
| US3955298A | Poster display frame | |
| US3955296A | Clip for securing signage to a variety of supports | |
| US4010517A | Sheet support apparatus |